Rhynchonellata - Orthida - Plaesiomyidae
Alternative spelling: Dinorthis (Plaesiomys)
Synonym: Pionorthis Schuchert and Cooper 1932 [replaced name]
Parent taxon: Plaesiomyinae according to A. Williams et al. 2000
See also Howe 1988, Macomber 1970, Mitchell 1977, Popov et al. 2000, Schuchert and Cooper 1932, Sepkoski 2002 and Wright 1964
Sister taxa: Austinella, Campylorthis, Chaulistomella, Dinorthis, Madiorthis, Multicostella, Retrorsirostra, Valcourea
Subtaxa: Dinorthis (Plaesiomys) saxbyana Dinorthis (Plaesiomys) solaris Plaesiomys (Plaesiomys) Plaesiomys (Valcourea) Plaesiomys anticostiensis Plaesiomys bellilamellosus Plaesiomys bellistriatus Plaesiomys carletona Plaesiomys cutterensis Plaesiomys fidelis Plaesiomys idahoensis Plaesiomys iphigenia Plaesiomys multiplicata Plaesiomys occidentalis Plaesiomys porcata Plaesiomys proavita Plaesiomys rockymontana Plaesiomys saxbiana Plaesiomys subcircularis Plaesiomys subquadratus
Ecology: stationary epifaunal suspension feeder
Distribution:
• Chazyan of United States (2: New York collections)
• Ordovician to Silurian of United States (1: California)
• Ordovician of Belarus (2), Canada (68: British Columbia, Manitoba, Northwest Territories, Nunavut, Ontario, Quebec), China (3), Estonia (20), Ireland (4), Kazakhstan (13), Myanmar (1), Norway (1), Poland (1), the United Kingdom (18), United States (138: Alaska, California, Colorado, Idaho, Illinois, Illinois, Iowa, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, New Mexico, New York, Ohio, Oklahoma, Tennessee, Texas, Virginia, Wisconsin, Wyoming)
Total: 272 collections including 289 occurrences
Specimen images are retrieved through the ePANDDA API.
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